diff --git a/vue2-tutorials/single-file/demo2/babel.config.js b/vue2-tutorials/single-file/demo2/babel.config.js
index e955840..162a3ea 100644
--- a/vue2-tutorials/single-file/demo2/babel.config.js
+++ b/vue2-tutorials/single-file/demo2/babel.config.js
@@ -1,5 +1,3 @@
 module.exports = {
-  presets: [
-    '@vue/cli-plugin-babel/preset'
-  ]
-}
+  presets: ["@vue/cli-plugin-babel/preset"],
+};
diff --git a/vue2-tutorials/single-file/demo2/package.json b/vue2-tutorials/single-file/demo2/package.json
index 5a2e6e7..e3791b4 100644
--- a/vue2-tutorials/single-file/demo2/package.json
+++ b/vue2-tutorials/single-file/demo2/package.json
@@ -9,12 +9,14 @@
   },
   "dependencies": {
     "core-js": "^3.8.3",
-    "vue": "^2.6.14"
+    "vue": "^2.6.14",
+    "vuex": "3"
   },
   "devDependencies": {
-    "@babel/core": "^7.12.16",
+    "@babel/core": "^7.27.4",
     "@babel/eslint-parser": "^7.12.16",
-    "@vue/cli-plugin-babel": "~5.0.0",
+    "@babel/preset-env": "^7.27.2",
+    "@vue/cli-plugin-babel": "~5.0.8",
     "@vue/cli-plugin-eslint": "~5.0.0",
     "@vue/cli-service": "~5.0.0",
     "eslint": "^7.32.0",
diff --git a/vue2-tutorials/single-file/demo2/pnpm-lock.yaml b/vue2-tutorials/single-file/demo2/pnpm-lock.yaml
index 659035d..f6abc18 100644
--- a/vue2-tutorials/single-file/demo2/pnpm-lock.yaml
+++ b/vue2-tutorials/single-file/demo2/pnpm-lock.yaml
@@ -14,15 +14,21 @@ importers:
       vue:
         specifier: ^2.6.14
         version: 2.7.16
+      vuex:
+        specifier: '3'
+        version: 3.6.2(vue@2.7.16)
     devDependencies:
       '@babel/core':
-        specifier: ^7.12.16
+        specifier: ^7.27.4
         version: 7.27.4
       '@babel/eslint-parser':
         specifier: ^7.12.16
         version: 7.27.5(@babel/core@7.27.4)(eslint@7.32.0)
+      '@babel/preset-env':
+        specifier: ^7.27.2
+        version: 7.27.2(@babel/core@7.27.4)
       '@vue/cli-plugin-babel':
-        specifier: ~5.0.0
+        specifier: ~5.0.8
         version: 5.0.8(@vue/cli-service@5.0.8(@vue/compiler-sfc@3.5.16)(lodash@4.17.21)(vue-template-compiler@2.7.16)(vue@2.7.16)(webpack-sources@3.3.2))(core-js@3.43.0)(vue@2.7.16)
       '@vue/cli-plugin-eslint':
         specifier: ~5.0.0
@@ -3582,6 +3588,11 @@ packages:
     resolution: {integrity: sha512-4gCtFXaAA3zYZdTp5s4Hl2sozuySsgz4jy1EnpBHNfpMa9dK1ZCG7viqBPCwXtmgc8nHqUsAu3G4gtmXkkY3Sw==}
     deprecated: Vue 2 has reached EOL and is no longer actively maintained. See https://v2.vuejs.org/eol/ for more details.
 
+  vuex@3.6.2:
+    resolution: {integrity: sha512-ETW44IqCgBpVomy520DT5jf8n0zoCac+sxWnn+hMe/CzaSejb/eVw2YToiXYX+Ex/AuHHia28vWTq4goAexFbw==}
+    peerDependencies:
+      vue: ^2.0.0
+
   watchpack@2.4.4:
     resolution: {integrity: sha512-c5EGNOiyxxV5qmTtAB7rbiXxi1ooX1pQKMLX/MIabJjRA0SJBQOjKF+KSVfHkr9U1cADPon0mRiVe/riyaiDUA==}
     engines: {node: '>=10.13.0'}
@@ -7706,6 +7717,10 @@ snapshots:
       '@vue/compiler-sfc': 2.7.16
       csstype: 3.1.3
 
+  vuex@3.6.2(vue@2.7.16):
+    dependencies:
+      vue: 2.7.16
+
   watchpack@2.4.4:
     dependencies:
       glob-to-regexp: 0.4.1
diff --git a/vue2-tutorials/single-file/demo2/pnpm-workspace.yaml b/vue2-tutorials/single-file/demo2/pnpm-workspace.yaml
new file mode 100644
index 0000000..1c218d8
--- /dev/null
+++ b/vue2-tutorials/single-file/demo2/pnpm-workspace.yaml
@@ -0,0 +1,2 @@
+ignoredBuiltDependencies:
+  - core-js
diff --git a/vue2-tutorials/single-file/demo2/src/main.js b/vue2-tutorials/single-file/demo2/src/main.js
index 74f1ec5..a5e5c4d 100644
--- a/vue2-tutorials/single-file/demo2/src/main.js
+++ b/vue2-tutorials/single-file/demo2/src/main.js
@@ -1,8 +1,10 @@
 import Vue from "vue";
 import App from "./App.vue";
+import store from "./store";
 
 Vue.config.productionTip = false;
 
 new Vue({
   render: (h) => h(App),
+  store,
 }).$mount("#app");
diff --git a/vue2-tutorials/single-file/demo2/src/store/index.js b/vue2-tutorials/single-file/demo2/src/store/index.js
new file mode 100644
index 0000000..63e861a
--- /dev/null
+++ b/vue2-tutorials/single-file/demo2/src/store/index.js
@@ -0,0 +1,12 @@
+import Vue from "vue";
+import Vuex from "vuex";
+Vue.use(Vuex);
+
+const store = new Vuex.Store({
+  state: {},
+  mutations: {},
+  actions: {},
+  modules: {},
+});
+
+export default store;